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Tantalum is a chemical element with the symbol Ta and atomic number 73. A rare, hard, blue-gray, lustrous, transition metal, tantalum is highly corrosion-resistant and occurs naturally in the mineral tantalite.


Atomic number:   73
Symbol:   Ta
Atomic weight:   180.948
Boiling Point (C):   5425
Melting Point (C):   2996
Density:   16.6
heatVapor:   180
heatFusion:   6.8
Electrical Conductivity:   0.081
Thermal Conductivity:   .13
Specific Heat Capacity:   0.036


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